Drilldown: Patents
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Patents > Year granted:
1889
& Filing date:
April 18, 1888
& Assigned to :
William Woods Plankinton or
None
& National tech categories :
GB 4 propel & steer or
USPC 244/9
& IPCs :
IPC B64C17/00 or
IPC B64C3/38 or
IPC B64C39/00
& First filing:
Yes
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Showing below up to 1 result in range #1 to #1.